/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 23:39:50,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 23:39:50,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 23:39:50,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 23:39:50,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 23:39:50,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 23:39:50,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 23:39:50,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 23:39:50,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 23:39:50,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 23:39:50,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 23:39:50,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 23:39:50,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 23:39:50,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 23:39:50,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 23:39:50,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 23:39:50,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 23:39:50,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 23:39:50,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 23:39:50,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 23:39:50,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 23:39:50,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 23:39:50,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 23:39:50,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 23:39:50,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 23:39:50,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 23:39:50,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 23:39:50,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 23:39:50,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 23:39:50,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 23:39:50,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 23:39:50,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 23:39:50,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 23:39:50,892 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 23:39:50,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 23:39:50,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 23:39:50,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 23:39:50,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 23:39:50,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 23:39:50,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 23:39:50,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 23:39:50,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 23:39:50,894 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 23:39:50,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 23:39:50,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 23:39:50,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 23:39:50,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 23:39:50,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 23:39:50,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 23:39:50,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 23:39:50,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:39:50,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 23:39:50,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 23:39:50,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 23:39:50,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 23:39:50,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:50,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 23:39:50,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 23:39:50,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 23:39:51,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 23:39:51,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 23:39:51,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 23:39:51,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 23:39:51,268 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 23:39:51,269 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-07-21 23:39:51,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1fc6704/91dca55cfbbb4173aa64026241c04454/FLAG3d75a136c [2020-07-21 23:39:51,843 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 23:39:51,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-07-21 23:39:51,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1fc6704/91dca55cfbbb4173aa64026241c04454/FLAG3d75a136c [2020-07-21 23:39:52,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1fc6704/91dca55cfbbb4173aa64026241c04454 [2020-07-21 23:39:52,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 23:39:52,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 23:39:52,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 23:39:52,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 23:39:52,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 23:39:52,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27dd07a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52, skipping insertion in model container [2020-07-21 23:39:52,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 23:39:52,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 23:39:52,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:39:52,555 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 23:39:52,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:39:52,604 INFO L208 MainTranslator]: Completed translation [2020-07-21 23:39:52,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52 WrapperNode [2020-07-21 23:39:52,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 23:39:52,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 23:39:52,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 23:39:52,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 23:39:52,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... [2020-07-21 23:39:52,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 23:39:52,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 23:39:52,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 23:39:52,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 23:39:52,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:39:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 23:39:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 23:39:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 23:39:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 23:39:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 23:39:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 23:39:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 23:39:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 23:39:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 23:39:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 23:39:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 23:39:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 23:39:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 23:39:53,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 23:39:53,178 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 23:39:53,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:39:53 BoogieIcfgContainer [2020-07-21 23:39:53,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 23:39:53,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 23:39:53,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 23:39:53,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 23:39:53,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:39:52" (1/3) ... [2020-07-21 23:39:53,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4165ce5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:39:53, skipping insertion in model container [2020-07-21 23:39:53,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:52" (2/3) ... [2020-07-21 23:39:53,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4165ce5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:39:53, skipping insertion in model container [2020-07-21 23:39:53,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:39:53" (3/3) ... [2020-07-21 23:39:53,193 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-07-21 23:39:53,206 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 23:39:53,216 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 23:39:53,232 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 23:39:53,259 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 23:39:53,260 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 23:39:53,260 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 23:39:53,260 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 23:39:53,261 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 23:39:53,261 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 23:39:53,261 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 23:39:53,261 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 23:39:53,282 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-21 23:39:53,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 23:39:53,288 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:39:53,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:39:53,290 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:39:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:39:53,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1078562183, now seen corresponding path program 1 times [2020-07-21 23:39:53,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:39:53,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300315174] [2020-07-21 23:39:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:53,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:39:53,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:39:53,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 23:39:53,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:39:53,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:39:53,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:39:53,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300315174] [2020-07-21 23:39:53,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:39:53,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 23:39:53,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878706847] [2020-07-21 23:39:53,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 23:39:53,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:39:53,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 23:39:53,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 23:39:53,766 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2020-07-21 23:39:54,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:39:54,126 INFO L93 Difference]: Finished difference Result 71 states and 105 transitions. [2020-07-21 23:39:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 23:39:54,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-21 23:39:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:39:54,142 INFO L225 Difference]: With dead ends: 71 [2020-07-21 23:39:54,142 INFO L226 Difference]: Without dead ends: 39 [2020-07-21 23:39:54,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-21 23:39:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-21 23:39:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-21 23:39:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-21 23:39:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2020-07-21 23:39:54,205 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 14 [2020-07-21 23:39:54,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:39:54,206 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2020-07-21 23:39:54,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 23:39:54,206 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2020-07-21 23:39:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-21 23:39:54,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:39:54,208 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:39:54,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:54,416 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:39:54,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:39:54,417 INFO L82 PathProgramCache]: Analyzing trace with hash -858115487, now seen corresponding path program 1 times [2020-07-21 23:39:54,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:39:54,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957958893] [2020-07-21 23:39:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:54,484 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:39:54,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:39:54,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 23:39:54,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:39:54,721 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:39:54,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:39:54,765 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:39:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 23:39:54,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957958893] [2020-07-21 23:39:54,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:39:54,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2020-07-21 23:39:54,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481829055] [2020-07-21 23:39:54,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:39:54,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:39:54,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:39:54,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-07-21 23:39:54,999 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 6 states. [2020-07-21 23:40:11,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:40:11,807 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-07-21 23:40:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 23:40:11,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-21 23:40:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:40:11,811 INFO L225 Difference]: With dead ends: 55 [2020-07-21 23:40:11,812 INFO L226 Difference]: Without dead ends: 53 [2020-07-21 23:40:11,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-21 23:40:11,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-07-21 23:40:11,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-07-21 23:40:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-21 23:40:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2020-07-21 23:40:11,824 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 28 [2020-07-21 23:40:11,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:40:11,824 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2020-07-21 23:40:11,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:40:11,825 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2020-07-21 23:40:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-21 23:40:11,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:40:11,827 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:40:12,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:40:12,045 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:40:12,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:40:12,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1617304246, now seen corresponding path program 1 times [2020-07-21 23:40:12,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:40:12,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56301884] [2020-07-21 23:40:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:40:12,113 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:40:12,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:40:12,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-21 23:40:12,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:40:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 23:40:12,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:40:12,520 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:40:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 6 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 23:40:25,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56301884] [2020-07-21 23:40:25,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:40:25,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2020-07-21 23:40:25,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593881144] [2020-07-21 23:40:25,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 23:40:25,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:40:25,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 23:40:25,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=185, Unknown=6, NotChecked=0, Total=240 [2020-07-21 23:40:25,763 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand 16 states. [2020-07-21 23:41:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:41:04,879 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2020-07-21 23:41:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 23:41:04,880 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-07-21 23:41:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:41:04,881 INFO L225 Difference]: With dead ends: 97 [2020-07-21 23:41:04,882 INFO L226 Difference]: Without dead ends: 67 [2020-07-21 23:41:04,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=53, Invalid=213, Unknown=6, NotChecked=0, Total=272 [2020-07-21 23:41:04,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-21 23:41:04,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-07-21 23:41:04,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-07-21 23:41:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2020-07-21 23:41:04,894 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 37 [2020-07-21 23:41:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:41:04,895 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2020-07-21 23:41:04,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 23:41:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2020-07-21 23:41:04,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 23:41:04,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:41:04,897 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:41:05,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:41:05,106 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:41:05,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:41:05,107 INFO L82 PathProgramCache]: Analyzing trace with hash 964983039, now seen corresponding path program 1 times [2020-07-21 23:41:05,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:41:05,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847558255] [2020-07-21 23:41:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:41:05,184 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:41:05,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:41:05,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 23:41:05,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:41:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 23:41:05,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:41:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 8 refuted. 20 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 23:41:17,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847558255] [2020-07-21 23:41:17,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:41:17,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-07-21 23:41:17,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101232540] [2020-07-21 23:41:17,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 23:41:17,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:41:17,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 23:41:17,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=53, Unknown=6, NotChecked=0, Total=90 [2020-07-21 23:41:17,809 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand 10 states. [2020-07-21 23:41:20,083 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:41:22,166 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:41:34,735 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:41:38,879 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:41:55,743 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:42:17,780 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:44:06,134 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 6) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 6) 4294967296))) is different from false [2020-07-21 23:44:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:44:06,141 INFO L93 Difference]: Finished difference Result 200 states and 302 transitions. [2020-07-21 23:44:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 23:44:06,142 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-07-21 23:44:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:44:06,153 INFO L225 Difference]: With dead ends: 200 [2020-07-21 23:44:06,153 INFO L226 Difference]: Without dead ends: 170 [2020-07-21 23:44:06,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=45, Invalid=60, Unknown=13, NotChecked=154, Total=272 [2020-07-21 23:44:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-21 23:44:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 160. [2020-07-21 23:44:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-21 23:44:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 231 transitions. [2020-07-21 23:44:06,188 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 231 transitions. Word has length 52 [2020-07-21 23:44:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:44:06,188 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 231 transitions. [2020-07-21 23:44:06,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 23:44:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 231 transitions. [2020-07-21 23:44:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 23:44:06,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:44:06,192 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:44:06,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:44:06,397 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:44:06,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:44:06,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1890085349, now seen corresponding path program 1 times [2020-07-21 23:44:06,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:44:06,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83785302] [2020-07-21 23:44:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:44:06,470 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:44:06,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:44:06,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-21 23:44:06,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:44:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 68 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 23:44:06,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:44:06,905 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:44:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 25 times theorem prover too weak. 64 trivial. 0 not checked. [2020-07-21 23:44:15,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83785302] [2020-07-21 23:44:15,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:44:15,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 19 [2020-07-21 23:44:15,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374739163] [2020-07-21 23:44:15,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-21 23:44:15,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:44:15,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-21 23:44:15,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=281, Unknown=3, NotChecked=0, Total=342 [2020-07-21 23:44:15,076 INFO L87 Difference]: Start difference. First operand 160 states and 231 transitions. Second operand 19 states. [2020-07-21 23:44:53,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:44:53,982 INFO L93 Difference]: Finished difference Result 295 states and 445 transitions. [2020-07-21 23:44:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 23:44:53,984 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 67 [2020-07-21 23:44:53,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:44:53,986 INFO L225 Difference]: With dead ends: 295 [2020-07-21 23:44:53,987 INFO L226 Difference]: Without dead ends: 181 [2020-07-21 23:44:53,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 107 SyntacticMatches, 10 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=62, Invalid=315, Unknown=3, NotChecked=0, Total=380 [2020-07-21 23:44:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-07-21 23:44:54,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2020-07-21 23:44:54,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-07-21 23:44:54,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 251 transitions. [2020-07-21 23:44:54,020 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 251 transitions. Word has length 67 [2020-07-21 23:44:54,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:44:54,024 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 251 transitions. [2020-07-21 23:44:54,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-21 23:44:54,024 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 251 transitions. [2020-07-21 23:44:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-21 23:44:54,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:44:54,028 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:44:54,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:44:54,234 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:44:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:44:54,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1891591146, now seen corresponding path program 1 times [2020-07-21 23:44:54,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:44:54,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813372249] [2020-07-21 23:44:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:44:54,328 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:44:54,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:44:54,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-21 23:44:54,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:44:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 12 proven. 129 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-21 23:44:54,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:44:54,975 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:45:26,841 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 66 proven. 0 refuted. 49 times theorem prover too weak. 86 trivial. 0 not checked. [2020-07-21 23:45:26,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813372249] [2020-07-21 23:45:26,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:45:26,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 26 [2020-07-21 23:45:26,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945652202] [2020-07-21 23:45:26,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-21 23:45:26,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:45:26,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-21 23:45:26,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=530, Unknown=10, NotChecked=0, Total=650 [2020-07-21 23:45:26,844 INFO L87 Difference]: Start difference. First operand 179 states and 251 transitions. Second operand 26 states. [2020-07-21 23:45:45,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:45:45,755 INFO L93 Difference]: Finished difference Result 251 states and 364 transitions. [2020-07-21 23:45:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 23:45:45,758 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 87 [2020-07-21 23:45:45,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:45:45,759 INFO L225 Difference]: With dead ends: 251 [2020-07-21 23:45:45,759 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:45:45,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 139 SyntacticMatches, 11 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=114, Invalid=578, Unknown=10, NotChecked=0, Total=702 [2020-07-21 23:45:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:45:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:45:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:45:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:45:45,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2020-07-21 23:45:45,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:45:45,762 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:45:45,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-21 23:45:45,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:45:45,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:45:45,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:45:45,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:45:46,148 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-07-21 23:45:52,733 WARN L193 SmtUtils]: Spent 6.50 s on a formula simplification. DAG size of input: 90 DAG size of output: 15 [2020-07-21 23:45:52,870 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 17 [2020-07-21 23:45:52,875 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:45:52,875 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:45:52,875 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:45:52,875 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:45:52,875 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 23:45:52,876 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point L27(lines 27 36) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 41) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point L23(lines 23 36) no Hoare annotation was computed. [2020-07-21 23:45:52,876 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 39) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L268 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L268 CegarLoopResult]: For program point L33-2(lines 21 36) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L268 CegarLoopResult]: For program point L29(lines 29 36) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L268 CegarLoopResult]: For program point L25(lines 25 36) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L268 CegarLoopResult]: For program point L21(lines 21 36) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 41) no Hoare annotation was computed. [2020-07-21 23:45:52,877 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (= (mod main_~l~0 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0) 4294967296)) [2020-07-21 23:45:52,878 INFO L264 CegarLoopResult]: At program point L38-1(lines 19 39) the Hoare annotation is: (= (mod (+ main_~l~0 2) 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0 2) 4294967296)) [2020-07-21 23:45:52,878 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 41) the Hoare annotation is: true [2020-07-21 23:45:52,878 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-21 23:45:52,878 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-21 23:45:52,878 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-21 23:45:52,878 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-21 23:45:52,878 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-21 23:45:52,878 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-21 23:45:52,879 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-21 23:45:52,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:45:52 BoogieIcfgContainer [2020-07-21 23:45:52,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:45:52,894 INFO L168 Benchmark]: Toolchain (without parser) took 360673.76 ms. Allocated memory was 145.8 MB in the beginning and 249.6 MB in the end (delta: 103.8 MB). Free memory was 103.7 MB in the beginning and 167.8 MB in the end (delta: -64.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. [2020-07-21 23:45:52,895 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 23:45:52,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.56 ms. Allocated memory is still 145.8 MB. Free memory was 103.3 MB in the beginning and 93.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:45:52,897 INFO L168 Benchmark]: Boogie Preprocessor took 192.02 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 93.1 MB in the beginning and 183.1 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:45:52,898 INFO L168 Benchmark]: RCFGBuilder took 384.23 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 166.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-07-21 23:45:52,899 INFO L168 Benchmark]: TraceAbstraction took 359707.15 ms. Allocated memory was 204.5 MB in the beginning and 249.6 MB in the end (delta: 45.1 MB). Free memory was 166.5 MB in the beginning and 167.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2020-07-21 23:45:52,903 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.56 ms. Allocated memory is still 145.8 MB. Free memory was 103.3 MB in the beginning and 93.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.02 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 93.1 MB in the beginning and 183.1 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 384.23 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 166.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 359707.15 ms. Allocated memory was 204.5 MB in the beginning and 249.6 MB in the end (delta: 45.1 MB). Free memory was 166.5 MB in the beginning and 167.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (l + 2) % 4294967296 == (i + j + k + v1 + v2 + v3 + v4 + v5 + 2) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 352.7s, OverallIterations: 6, TraceHistogramMax: 7, AutomataDifference: 282.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 151 SDslu, 602 SDs, 0 SdLazy, 2126 SolverSat, 111 SolverUnsat, 122 SolverUnknown, 0 SolverNotchecked, 249.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 565 GetRequests, 445 SyntacticMatches, 31 SemanticMatches, 89 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 86.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 49 PreInvPairs, 76 NumberOfFragments, 38 HoareAnnotationTreeSize, 49 FomulaSimplifications, 449 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 663 FormulaSimplificationTreeSizeReductionInter, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 68.1s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 545 ConstructedInterpolants, 0 QuantifiedInterpolants, 415659 SizeOfPredicates, 11 NumberOfNonLiveVariables, 642 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 410/760 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...